Poor Demi Moore! She Tweeted over the weekend that she wasn't attending the Golden Globes with her husband, Ashton Kutcher, because she was "having a bad hair day." While we didn't think she needed more than a hairbrush, we all have days when we look in the mirror and wish we could just pull the covers up over our head and hide out in bed. While Demi stayed home, other stars braved the rain-soaked red carpet, and in some instances a case of the frizzies, to party with the A-list.

So know we know that celebs aren't immune, but how do you avoid a bad hair day? We checked in with Vampire Diaries'  hairstylist Randa Squillacote, who revealed her secret for keeping the cast of the CW hit looking good, no matter what the weather. “It all starts with clean, conditioned hair, using the right tools and, of course, the right products,” Randa says. Read on for Randa’s tips for preventing major hair mishaps.

Read How the Stars Get Red-Carpet Ready

The Problem: Frizz
Megan Fox’s wannabe-tousled curls were a frizzy mess at the July premiere of Eagle Eye.

Randa’s Solution:
Randa starts by spraying 2” x 2” sections of hair with a spray like White Sands Liquid Texture Medium Hold spray (8 oz, $19, whitesandsproducts.com). “Wrap vertically around medium- to large-barrel curling irons,” Randa says. “For a random curl, alternate medium and large irons through the head. Work White Sands Smudge Texture Crème in hands and fingertips and gently work through each curled section, placing hair as desired with your hands.”

The Problem: Bad Bangs
It looks like someone got a little carried away while trimming Kathy Griffin's bangs.

Randa’s Solution:
“[There’s] nothing worse than bad bangs,” Randa says. “Try to keep sides back and use accessories or headbands to distract [from] bad bangs. You could always get clip-in extensions that match your hair color and fill in the corners.” Try Hairdo by Ken Paves & Jessica Simpson Clip-In Bangs ($24.12, qvc.com)